On 1991-04-04, Miami Dolphins and Houston Oilers completed a…
On 1991-04-04, Miami Dolphins and Houston Oilers completed a deal whose long-term value became clearer after the players and draft choices developed. Grimsley eventually started 20 games for Miami across the 1992 and 1993 seasons, so the Dolphins did obtain usable defensive value even though he did not become a long-term cornerstone. Houston's advantage rests on sustained team-specific value rather than Donnalley's later career elsewhere. The result is Houston Oilers Win, with Miami Dolphins graded C and Houston Oilers graded A.
Miami Dolphins Received
- player John Grimsley
Tennessee Titans Received
- pick 1991 third round pick (#79-Kevin Donnalley)
Trade Analysis
Why the Deal Happened
Miami acquired linebacker John Grimsley from Houston on April 4, 1991 and sent the Oilers the 79th pick in that year's draft. The Dolphins were adding an experienced defender before the draft, while Houston converted the veteran into a third-round selection. The Oilers used No. 79 on North Carolina offensive lineman Kevin Donnalley, creating a direct player-for-pick comparison.
What Miami Dolphins and Houston Oilers Received
Grimsley eventually started 20 games for Miami across the 1992 and 1993 seasons, so the Dolphins did obtain usable defensive value even though he did not become a long-term cornerstone. Donnalley developed into a far more durable NFL lineman. He played 193 career games with 144 starts and spent his first seven seasons with the Oilers and Titans organization, becoming a regular starter on the offensive line.
How the Value Developed
Houston's advantage rests on sustained team-specific value rather than Donnalley's later career elsewhere. The Oilers used the acquired third-round selection on a player who remained with the franchise through 1997 and accumulated years of line work. Miami's two seasons of starting contribution from Grimsley were useful, but they did not match the duration or positional stability generated by the player Houston drafted with the exchanged pick.
Final Verdict
Houston Oilers Win. Miami's C reflects that Grimsley was not a failed acquisition; he eventually gave the Dolphins meaningful starts. Houston receives an A because a veteran trade produced a third-round pick that became a long-tenured offensive lineman and multi-year starter. The direct conversion from Grimsley to No. 79 Kevin Donnalley gives the Oilers the stronger football return without relying on unrelated later transactions.